From: Janne Liljeblad <janne.liljeblad@gmail.com>
Date: Mon, 17 Mar 2014 18:40:40 +0000 (+0200)
Subject: Use NULL instead of magic string to flag unset parameter
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=7d8e0015a1a12a8ec671b9316a30aa78fb0b53be;hp=7d8e0015a1a12a8ec671b9316a30aa78fb0b53be;p=mlt

Use NULL instead of magic string to flag unset parameter
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